Agent Name

Beryllium fluoride

CAS Number

7787-49-7

Formula

Be-F2

Major Category

Metals

Synonyms

Beryllium difluoride; Beryllium fluoride(Be2F4); Beryllium fluoride(BeF2); [ChemIDplus] UN1566

Category

Beryllium Compounds, Inorganic

Description

Hygroscopic solid; Soluble in water; [Merck Index] Grey or colorless chunks; [MSDSonline]

Sources/Uses

Used to make beryllium, beryllium alloys, glass, and welding/soldering fluxes; Also used in nuclear reactors; [HSDB]

Comments

A skin, eye, and respiratory tract irritant; [HSDB] Skin contact may cause dermatitis and non-healing ulcers; [CAMEO] A severe skin, eye, and respiratory tract irritant; May cause beryllium sensitization after prolonged contact; Dust or fume inhalation may cause chemical pneumonitis; Repeated or prolonged exposure may cause chronic beryllium disease; [ICSC] See "Beryllium" for one additional linked occupational disease.

Exposure Assessment
BEI

Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)

Skin Designation (ACGIH)

Yes

TLV (ACGIH)

5.0E-5 mg/m3, as Be, inhalable fraction (2.5 mg/m3, as F)

PEL (OSHA)

0.002 mg/m3, as Be, Ceiling(OSHA) = 0.005 mg/m3, as Be(0.025 mg/m3,as Be,for 30 min.peak per 8-hr shift) [ 2.5 mg/m3, as F]

MAK

1 mg/m3, inhalable fraction, as F

IDLH (NIOSH)

4 mg/m3, as Be

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Beryllium compounds, n.o.s."

Adverse Effects
Fibrogenic

Yes

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: